As with most new themes in FishVille these days, Zynga has released a new collection event with their Deep Sea item theme. The Nautilus Shell Stash, appropriately enough (since we are talking about underwater-themed items) asks us to collect shells. A fairly basic request that will see you either receiving shells as gifts from friends or purchasing them from the store in packs of 5 for 5 Sand Dollars.

As you collect shells, you’ll be able to redeem them for various items at the 3 shell, 6, 10, 16, 20 and 30 shell levels.

As usual, you can hit the “Ask for More” button to be sent to a reverse of the game’s free gifts page, where you’ll send out item requests to friends, to see if they’ll send you a shell, or you can head over to the game’s Free Gifts page proper and initiate the shell gift giving exchange.

The Nautilus Shell Stash will only be around for a limited amount of time so be sure to head over to the game’s page soon to start collecting all of the shells you can.